Respiratory system crossword !!
Across
- 3. a small hole at the entrance of the nose
- 4. two saclike respiratory organs in the thorax of humans and the higher vertebrates.
- 7. a little hollow, as the socket of a tooth, a follicle of an acinous gland, or a pulmonary alveolus
- 9. a large, air-filled space above and behind the nose in the middle of the face.
- 11. a cartilaginous tube that connects the pharynx and larynx to the lungs, allowing the passage of air
- 12. one of the three fundamental states of matter
Down
- 1. the smaller branches of the bronchial airways in the respiratory tract
- 2. the part of the throat behind the mouth and nasal cavity, and above the esophagus and larynx – the tubes going down to the stomach and the lungs.
- 5. the lining of the nasal passage with mucous membranes and hair-like structures
- 6. a biological system consisting of specific organs and structures used for gas exchange in animals and plants.
- 8. the process of inhaling and exhaling gas
- 10. voice box, Below the pharynx and at the upper end of the trachea